PROBLEM TO BE SOLVED: To enable a seedling planting part to stop at a proper position easily without adjusting a position of a position detection part which detects that the seedling planting part is positioned on the upper side.SOLUTION: A seedling transplanter comprises: a moving machine body movable by power of a drive part a seedling planting part provided in the moving machine body for planting seedlings to a ridge by moving up and down a position detection part for detecting that the seedling planting part is positioned on the upper side a clutch for connecting or disconnecting the power from the drive part to the seedling planting part and a control unit for disconnecting the clutch after a predetermined delay time following detection of a detection signal detected by the position detection part.
